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Markus EiseleLangChain4j 1.3.0 is out! This release brings powerful agent improvements, better OpenAI tool calling, and smarter message routing and all in pure <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a>.- Explore what’s new: <a href="https://github.com/langchain4j/langchain4j/releases/tag/1.3.0" rel="nofollow noopener" translate="no" target="_blank">https://github.com/langchain4j/langchain4j/releases/tag/1.3.0</a> - Build smarter agents: <a href="https://langchain4j.github.io/tutorials/agents/" rel="nofollow noopener" translate="no" target="_blank">https://langchain4j.github.io/tutorials/agents/</a><a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a> <a href="https://mastodon.online/tags/JavaAI" class="mention hashtag" rel="nofollow noopener" target="_blank">#JavaAI</a> <a href="https://mastodon.online/tags/LLM" class="mention hashtag" rel="nofollow noopener" target="_blank">#LLM</a>

Markus EiseleArchitecting Multi-Agent AI Systems in Java with Quarkus and Langchain4j How to orchestrate scalable AI workflows using message-driven agents and local LLMs with Kafka <a href="https://myfear.substack.com/p/multi-agent-ai-quarkus-langchain4j-java" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/multi-agent-ai-quarkus-langchain4j-java</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/AiAgents" class="mention hashtag" rel="nofollow noopener" target="_blank">#AiAgents</a> <a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a> <a href="https://mastodon.online/tags/Kafka" class="mention hashtag" rel="nofollow noopener" target="_blank">#Kafka</a>

Markus Eisele<a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a> 1.2.0 and 1.2.0-beta8 are out!🦜 <a href="https://github.com/langchain4j/langchain4j/releases/tag/1.2.0" rel="nofollow noopener" translate="no" target="_blank">https://github.com/langchain4j/langchain4j/releases/tag/1.2.0</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a>

Markus EiseleBuilding a Real-Time Collaborative AI Editor with Quarkus, CRDTs, and Local LLMs Learn how to combine CRDTs, WebSockets, and a local LLM to build a fast, conflict-free collaborative text editor with AI suggestions <a href="https://myfear.substack.com/p/real-time-ai-editor-quarkus-crdt-langchain4j" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/real-time-ai-editor-quarkus-crdt-langchain4j</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Websockets" class="mention hashtag" rel="nofollow noopener" target="_blank">#Websockets</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/LLM" class="mention hashtag" rel="nofollow noopener" target="_blank">#LLM</a> <a href="https://mastodon.online/tags/Ollama" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ollama</a> <a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a>

Markus EiseleFast and Smart: Content Moderation with Java, Bloom Filters, and Local LLMs Build a blazing-fast moderation API in Quarkus that filters content intelligently using n-grams, probabilistic data structures, and llama3. <a href="https://myfear.substack.com/p/quarkus-content-moderation-bloom-filter-llm" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/quarkus-content-moderation-bloom-filter-llm</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/Langchain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#Langchain4j</a> <a href="https://mastodon.online/tags/ollama" class="mention hashtag" rel="nofollow noopener" target="_blank">#ollama</a> <a href="https://mastodon.online/tags/BloomFilter" class="mention hashtag" rel="nofollow noopener" target="_blank">#BloomFilter</a>

Markus EiseleBuild Your First AI Agent in Java: Quarkus, Langchain4j, and the A2A SDK How to create a summarizing agent that speaks the A2A protocol and harnesses local or cloud LLMs <a href="https://myfear.substack.com/p/build-ai-agent-java-quarkus-langchain4j-a2a" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/build-ai-agent-java-quarkus-langchain4j-a2a</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/A2A" class="mention hashtag" rel="nofollow noopener" target="_blank">#A2A</a> <a href="https://mastodon.online/tags/AiAgent" class="mention hashtag" rel="nofollow noopener" target="_blank">#AiAgent</a> <a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a>

Markus EiseleCaptain’s Log, Stardate Java: Building a Quarkus-Powered AI Sci-Fi App with Langchain4j and Ollama. Use the power of local LLMs, Quarkus magic, and Langchain4j tool calling to generate dynamic, weekday-aware space captain logs <a href="https://myfear.substack.com/p/quarkus-langchain4j-captains-log-generator" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/quarkus-langchain4j-captains-log-generator</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a> <a href="https://mastodon.online/tags/ToolCalling" class="mention hashtag" rel="nofollow noopener" target="_blank">#ToolCalling</a> <a href="https://mastodon.online/tags/CaptainsLog" class="mention hashtag" rel="nofollow noopener" target="_blank">#CaptainsLog</a>

Markus EiseleTracing the Mind of Your AI: Java Observability with Quarkus and LangChain4j Instrument, trace, and monitor your AI-powered Java apps using local LLMs, Ollama, and OpenTelemetry with zero boilerplate. <a href="https://myfear.substack.com/p/java-ai-observability-quarkus-langchain4j" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/java-ai-observability-quarkus-langchain4j</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a> <a href="https://mastodon.online/tags/Ollama" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ollama</a> <a href="https://mastodon.online/tags/OpenTelemetry" class="mention hashtag" rel="nofollow noopener" target="_blank">#OpenTelemetry</a>

Markus EiseleSmart Local AI Routing in Java: Build a Hybrid LLM Gateway with Quarkus and Ollama Use LangChain4j, semantic embeddings, and Quarkus to route prompts to the best local LLM for coding, summarization, or chat <a href="https://myfear.substack.com/p/smart-local-llm-routing-quarkus-java-ollama" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/smart-local-llm-routing-quarkus-java-ollama</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/Ollama" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ollama</a> <a href="https://mastodon.online/tags/Langchain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#Langchain4j</a> <a href="https://mastodon.online/tags/SemanticRouting" class="mention hashtag" rel="nofollow noopener" target="_blank">#SemanticRouting</a>

Guillaume LaforgeThe Sci-Fi naming problem: Are <a href="https://uwyn.net/tags/LLMs" class="mention hashtag" rel="nofollow noopener" target="_blank">#LLMs</a> less creative than we think?The most well known LLMs seem to always give the same names to the protagonists of <a href="https://uwyn.net/tags/scifi" class="mention hashtag" rel="nofollow noopener" target="_blank">#scifi</a> stories. Why do they do that? Are they not creative? Who are Dr Thorne and Anya?In my AI agent generating sci-fi stories (developed with <a href="https://uwyn.net/tags/langchain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#langchain4j</a>, deployed on <a href="https://uwyn.net/tags/CloudRun" class="mention hashtag" rel="nofollow noopener" target="_blank">#CloudRun</a>) I was always encountering the same names again and again:short-ai-story.web.app

Markus EiseleMaster AI-Powered DNS Lookups with Quarkus and Langchain4j What if you could ask your Java app, “What are the MX records for <a href="https://gmail.com?”" rel="nofollow noopener" translate="no" target="_blank">https://gmail.com?”</a> and get a precise, AI-generated answer in seconds <a href="https://myfear.substack.com/p/ai-dns-lookup-java-quarkus-langchain4j" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/ai-dns-lookup-java-quarkus-langchain4j</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a> <a href="https://mastodon.online/tags/DNS" class="mention hashtag" rel="nofollow noopener" target="_blank">#DNS</a> <a href="https://mastodon.online/tags/Ai" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ai</a>

Markus EiseleMastering AI Tool-Calling with Java: Build Your Own Dungeon Master with Quarkus and LangChain4j. Turn a local LLM into a dice-rolling, decision-making RPG game master. Powered by Java, Quarkus, and the magic of LangChain4j. <a href="https://myfear.substack.com/p/ai-dungeon-master-quarkus-langchain4j-java" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/ai-dungeon-master-quarkus-langchain4j-java</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a> <a href="https://mastodon.online/tags/Game" class="mention hashtag" rel="nofollow noopener" target="_blank">#Game</a> <a href="https://mastodon.online/tags/RPG" class="mention hashtag" rel="nofollow noopener" target="_blank">#RPG</a> <a href="https://mastodon.online/tags/llm" class="mention hashtag" rel="nofollow noopener" target="_blank">#llm</a> <a href="https://mastodon.online/tags/Ollama" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ollama</a>

Markus EiseleGroan-Worthy Greatness: Build an AI Dad Joke Generator with Java, Quarkus, and Langchain4j. Learn how to wire up local LLMs with @RegisterAiService and bring some humor (and hands-on AI skills) to your Quarkus apps. <a href="https://myfear.substack.com/p/quarkus-langchain4j-dad-joke-generator" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/quarkus-langchain4j-dad-joke-generator</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a> <a href="https://mastodon.online/tags/DadJokes" class="mention hashtag" rel="nofollow noopener" target="_blank">#DadJokes</a>

Markus EiseleBuilding Smart Support: AI-Driven Customer Service with Java and Quarkus Harness the power of LangChain4j, Ollama, and pgvector to create a reactive, intelligent support system. <a href="https://myfear.substack.com/p/ai-customer-support-quarkus-langchain4j" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/ai-customer-support-quarkus-langchain4j</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a> <a href="https://mastodon.online/tags/pgvector" class="mention hashtag" rel="nofollow noopener" target="_blank">#pgvector</a>

Markus EiseleTeaching AI to Remember: Inside a Java-Based Semantic Memory System How Quarkus, LangChain4j, and pgvector power long-term memory for intelligent, context-aware conversations <a href="https://myfear.substack.com/p/java-ai-semantic-memory-quarkus-langchain4j" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/java-ai-semantic-memory-quarkus-langchain4j</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a> <a href="https://mastodon.online/tags/AiMemory" class="mention hashtag" rel="nofollow noopener" target="_blank">#AiMemory</a> <a href="https://mastodon.online/tags/LongTerm" class="mention hashtag" rel="nofollow noopener" target="_blank">#LongTerm</a> <a href="https://mastodon.online/tags/SemanticMemory" class="mention hashtag" rel="nofollow noopener" target="_blank">#SemanticMemory</a>

Brian Benz🤝☕️ New Blog post - @Microsoft invests in <a href="https://mastodon.social/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a> for secure <a href="https://mastodon.social/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.social/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AI</a>. Azure OpenAI, GitHub Models, Cosmos DB, AI Search; plus official OpenAI Java SDK (Azure auth & security). Read 👉 <a href="https://devblogs.microsoft.com/java/microsoft-and-langchain4j-a-partnership-for-secure-enterprise-grade-java-ai-applications/" rel="nofollow noopener" translate="no" target="_blank">https://devblogs.microsoft.com/java/microsoft-and-langchain4j-a-partnership-for-secure-enterprise-grade-java-ai-applications/</a><a href="https://mastodon.social/tags/Azure" class="mention hashtag" rel="nofollow noopener" target="_blank">#Azure</a> <a href="https://mastodon.social/tags/OpenSource" class="mention hashtag" rel="nofollow noopener" target="_blank">#OpenSource</a>

Markus EiseleMicrosoft and LangChain4j: A Partnership for Secure, Enterprise-Grade Java AI Applications <a href="https://devblogs.microsoft.com/java/microsoft-and-langchain4j-a-partnership-for-secure-enterprise-grade-java-ai-applications/" rel="nofollow noopener" translate="no" target="_blank">https://devblogs.microsoft.com/java/microsoft-and-langchain4j-a-partnership-for-secure-enterprise-grade-java-ai-applications/</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/langchain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#langchain4j</a> <a href="https://mastodon.online/tags/aiml" class="mention hashtag" rel="nofollow noopener" target="_blank">#aiml</a> <a href="https://mastodon.online/tags/JavaAI" class="mention hashtag" rel="nofollow noopener" target="_blank">#JavaAI</a>

Guillaume LaforgeJust shared my presentation on <a href="https://uwyn.net/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AI</a> <a href="https://uwyn.net/tags/Agents" class="mention hashtag" rel="nofollow noopener" target="_blank">#Agents</a>. If you want to learn more about the <a href="https://uwyn.net/tags/MCP" class="mention hashtag" rel="nofollow noopener" target="_blank">#MCP</a> & <a href="https://uwyn.net/tags/A2A" class="mention hashtag" rel="nofollow noopener" target="_blank">#A2A</a> protocols, and frameworks like <a href="https://uwyn.net/tags/ADK" class="mention hashtag" rel="nofollow noopener" target="_blank">#ADK</a>, <a href="https://uwyn.net/tags/langchain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#langchain4j</a> for building agents in Java in particular, read on! <a href="https://glaforge.dev/talks/2025/07/16/ai-agents-the-new-frontier-for-llms/" rel="nofollow noopener" translate="no" target="_blank">https://glaforge.dev/talks/2025/07/16/ai-agents-the-new-frontier-for-llms/</a>

Markus EiseleBuild a Smart Credit Card Validator with Quarkus, Langchain4j, and Ollama Validate cards like a bank, talk like a human. <a href="https://myfear.substack.com/p/smart-credit-card-validator-quarkus-langchain4j-ollama" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/smart-credit-card-validator-quarkus-langchain4j-ollama</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Langchain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#Langchain4j</a> <a href="https://mastodon.online/tags/Ollama" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ollama</a> <a href="https://mastodon.online/tags/CreditCardValidator" class="mention hashtag" rel="nofollow noopener" target="_blank">#CreditCardValidator</a> <a href="https://mastodon.online/tags/AiAgent" class="mention hashtag" rel="nofollow noopener" target="_blank">#AiAgent</a>

Markus EiseleFrom Black Box to Blueprint: Tracing Every LLM Decision with Quarkus Build trust, traceability, and visual insight into your AI-powered Java apps using LangChain4j, Ollama, and CDI interceptors. <a href="https://myfear.substack.com/p/llm-observability-quarkus-langchain4j" rel="nofollow noopener" translate="no" target="_blank">https://myfear.substack.com/p/llm-observability-quarkus-langchain4j</a> <a href="https://mastodon.online/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://mastodon.online/tags/Quarkus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quarkus</a> <a href="https://mastodon.online/tags/LLM" class="mention hashtag" rel="nofollow noopener" target="_blank">#LLM</a> <a href="https://mastodon.online/tags/Observability" class="mention hashtag" rel="nofollow noopener" target="_blank">#Observability</a> <a href="https://mastodon.online/tags/Traces" class="mention hashtag" rel="nofollow noopener" target="_blank">#Traces</a> <a href="https://mastodon.online/tags/CDI" class="mention hashtag" rel="nofollow noopener" target="_blank">#CDI</a> <a href="https://mastodon.online/tags/Ollama" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ollama</a> <a href="https://mastodon.online/tags/LangChain4j" class="mention hashtag" rel="nofollow noopener" target="_blank">#LangChain4j</a>

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